Universal-joint coupling for shafting



{N0 Modei.)

W. ESTY.

UNIYERSAL JOINT COUPLING FOR SHAFTING. N0. 565,159;

Patented' Augj, 1896.

fnvantor:

Witnesses;

UNIT D -STATES {PATE T Fri-(33E.

UNIVERSAL-JGINT. COUPLING FoR SHAFTING.

SPECIFICATION forniing part of Letters datent No. 565,153, dated August 4, 1896. Applicationfiled April 10, 1896.? Serial in. 586,908. on model.)

To all whom it may concern:

Be it known that 1, WILLIAM ESTY, a citizen of the United States, g'esidingat Laconia, in the county of Belknap and State of New Hampshire, have invented certain ,new and useful Improvements in Universal J oint Couplings for Shafting, of which the following is a specification, reference being bad therein to't-he accompanying drawings. 4 o The invention consists in certain improved and novel features of construction and in a novel and useful combination of parts, and

first will be described with reference to the c accompanying drawings, after which the novel features thereof will be more particularly pointed out, and distinctly defined in the claims at the end of this specification.

Figure 1 oi the drawings is a view illustrating the best embodiment of my invention which I have yet devised. Fig. 2 is a view showing the same in different position with certain parts in section in order to show the construction more clearly. Fig. 3 is a View in cross-section on line 3 3 'of Fig. 1.. Fig. 4 shows the cube in elevation.

l 2 respectively designate portions of shafting which are disposed at an angle to each other. i

3 3 designate fork-shaped yokcs which are mounted on the proximate ends of the said pieces of shafting, the said yokes standing at right angles to each other.

4 are disks applied to the'frec ends of the arms of the respective yokes, cach disk hav- 3 5 ing a central stem or pin 5, which passes through a hole 6 in the arm to which it is applied, the pin and hole being screw-threaded to fit. each other, thereby enabling the 'disk to be adjusted in or out in the direction of o th'e'length of its pin by rotating it in the proper direction. The threaded socket which the foregoing construction provides for the reception of the pin of each disk is split, as at 7, to enable it to be contracted upon the 4 5 pin after the corresponding disk has been adjusted into the required position, the contrac tion being efi'ected by means of a bolt 8;

The disks which are connected with the op- .posite arms or one yoke are applied to diametrically opposite faces of a cube 9, while the disks which are connected with the op ,posite-arms of the other yoke are applied to 1 another pair of diametricallyopposite faces of the said cube. For the purpose of prcventing displacement of the disks upon the respective faces of the cube, the contacting surfaces of the said disks and faces are. grooved correspondingly, the projections 10 on the one part entering the grooves 11 of e the other part, as shown clearly in Fig. 3. In the rotatipn of the parts, the disks and .cube turn relatively to each other on two axes which are at right angles to each other, such axes corresponding with the longitudinal axes of the pins pertaining to the respective pairs of disks. In order to permit this relative movement, the grooves ofthe disks and of the faces of the cube are formed concentric'with the centers of the respective parts.

Cube 9 is made hollow, its interior space constitutin g a receptacle'for oil, the oil being introduced through a hole that is closed by a screw or other desired closure, (indicated at 12.) Each working side of the cube has a com tral hole 13 therethrough,in which is placed a suitable means of feeding the oil to the contacting faces of the disks and cube; I have shown for the purpose a plug of wood 14, which I drive into each hole, said plug being surrounded by felt l5. Cross-grooves 16 16 lead the oil outward from the center of eachworking face of the cube and distribute it to all the concentric grooves in the said face and the disk which is applied thereto;

For the purpose of enabling the oubeto be centered properly in setting up the parts or whenever occasion arises for changing the position of the disks, I employ in connection with each disk a scale 17 and an lnd8 hj 8,', one of these being upon the disk and he "go othernpon the cube adjrccnt to such one: hen all the disks occupy positions in whic the'respective indices come opposite corre spending marks on the various scales, the

cube will occupy the desired central positions. 9 5

The described construction is strong and durable and is kept oiled continually, the reservoir Within the cube requiring to be refilled only at intervals.

I claim asmy invention 1. The combination with the opposite yokes of the disks rigidly applied to the, arms of said yokes, and the cube having pairs of diametrically opposite working faces on which ICO of diametrically opposite working faces on which the said disks take bearing. and also having an internal reservoir for oil and means to feed the oil to the contacting surfaces oi the disks and cube, substantially as described.

u. The combination with the' opposite yokes, of the disks rigidly applied to the arinsof said yokes, and the cube having pairs of diametrically oppositeworking faces on which the said disks take bearing, the said disks and cube having, intermeshing concentrically-grooved surfaces, substantially as described.

-t. The combination with the opposite yokes, of the disks having concentricallygrooved faces and applied to the arms of said yokes, and the cube haring pairs of diametrically opposite emlcentricall5 working grooved laces on which the said disks take bearing, the contacting surfaces of the disks and faces of the cube intermeshing as described, the said cube also having an internal reservoir for oil and means to feed the oil to the contacting faeesoi. the disks and cube,

substantially as described.

The holloweube for uni versal-joint couplings having four sides thereof. grooved concentrically and having means to feed oil from the int-erinrythercof to the said grooved side substantially as set forth. a

6. The disk i for universal-joint eoupliz having a concentrically grooved working face, substantially as set forth.

In testimony whereof I ailix my signat urcinpresence of two Witnesses.

l'is'll'. Witnesses:

FRED 0. PHEia's,

0. ll". 'lnannrrs. 

